I have an unused site, which I built a few years ago backlinks. This site is well positioned for its authority, when that I knew nothing of anchor text, or issues related to links. It was a page in Italian positioned well for the keywords that I put in the title tag. I guess it would be by the authority of the links, because if I changed the words, automatically position it well for those other new words.
I have now I put AdSense on that page to monetize, but did not win much with it, less than 1 euro per day.
Let me know if I make a 301 redirect to another site of mine, the authority of the backlinks for the domain be transferred.
I do not know if I explained very well, my English is not too good.